Is it normal to desire a Best friend?

I have a melancholic personality (reserved, prefers to be alone, etc...) and being one, I believe and want only a few friends. But, I also desire to have a best friend, someone who will be a lifetime friend. There is this person, whom I am praying to be my best friend because he is the only one I extremely trust and somehow, he uplifts me from my melancholic mood. Now, is it normal to choose him as my best friend for life, although he is completely opposite of me (very friendly, outgoing, talkative)?